Hi Deet I think this is a'Datura'

It must be the year of this Datura, (D. stramonium) as this is the most frequently asked question we've had recently!

It's toxic, Deet, so dispose of it carefully.

I do not know how many times I ahve come across simular questions. LOL

Although poisonous, it's quite attractive, I think. Me, I'd keep it 'til the seed case hardens, for interest's sake. And it's not every year that it makes the headlines with such frequency. No one will see one next year, I bet. Phil J